diff options
Diffstat (limited to 'tests/dialects/test_duckdb.py')
| -rw-r--r-- | tests/dialects/test_duckdb.py | 140 |
1 files changed, 113 insertions, 27 deletions
diff --git a/tests/dialects/test_duckdb.py b/tests/dialects/test_duckdb.py index f915168..e5f7e0c 100644 --- a/tests/dialects/test_duckdb.py +++ b/tests/dialects/test_duckdb.py @@ -7,6 +7,41 @@ class TestDuckDB(Validator): dialect = "duckdb" def test_duckdb(self): + struct_pack = parse_one('STRUCT_PACK("a b" := 1)', read="duckdb") + self.assertIsInstance(struct_pack.expressions[0].this, exp.Identifier) + self.assertEqual(struct_pack.sql(dialect="duckdb"), "{'a b': 1}") + + self.validate_all( + "SELECT SUM(X) OVER (ORDER BY x)", + write={ + "bigquery": "SELECT SUM(X) OVER (ORDER BY x NULLS LAST)", + "duckdb": "SELECT SUM(X) OVER (ORDER BY x)", + "mysql": "SELECT SUM(X) OVER (ORDER BY CASE WHEN x IS NULL THEN 1 ELSE 0 END, x)", + }, + ) + self.validate_all( + "SELECT SUM(X) OVER (ORDER BY x RANGE BETWEEN 1 PRECEDING AND CURRENT ROW)", + write={ + "bigquery": "SELECT SUM(X) OVER (ORDER BY x RANGE BETWEEN 1 PRECEDING AND CURRENT ROW)", + "duckdb": "SELECT SUM(X) OVER (ORDER BY x RANGE BETWEEN 1 PRECEDING AND CURRENT ROW)", + "mysql": "SELECT SUM(X) OVER (ORDER BY x RANGE BETWEEN 1 PRECEDING AND CURRENT ROW)", + }, + ) + self.validate_all( + "SELECT * FROM x ORDER BY 1 NULLS LAST", + write={ + "duckdb": "SELECT * FROM x ORDER BY 1", + "mysql": "SELECT * FROM x ORDER BY 1", + }, + ) + + self.validate_all( + "CREATE TEMPORARY FUNCTION f1(a, b) AS (a + b)", + read={"bigquery": "CREATE TEMP FUNCTION f1(a INT64, b INT64) AS (a + b)"}, + ) + self.validate_identity("SELECT 1 WHERE x > $1") + self.validate_identity("SELECT 1 WHERE x > $name") + self.assertEqual( parse_one("select * from t limit (select 5)").sql(dialect="duckdb"), exp.select("*").from_("t").limit(exp.select("5").subquery()).sql(dialect="duckdb"), @@ -55,11 +90,35 @@ class TestDuckDB(Validator): ) self.validate_all( + """SELECT JSON('{"fruit":"banana"}') -> 'fruit'""", + write={ + "duckdb": """SELECT JSON('{"fruit":"banana"}') -> 'fruit'""", + "snowflake": """SELECT PARSE_JSON('{"fruit":"banana"}')['fruit']""", + }, + ) + self.validate_all( + """SELECT JSON('{"fruit": {"foo": "banana"}}') -> 'fruit' -> 'foo'""", + write={ + "duckdb": """SELECT JSON('{"fruit": {"foo": "banana"}}') -> 'fruit' -> 'foo'""", + "snowflake": """SELECT PARSE_JSON('{"fruit": {"foo": "banana"}}')['fruit']['foo']""", + }, + ) + self.validate_all( + "WITH _data AS (SELECT [{'a': 1, 'b': 2}, {'a': 2, 'b': 3}] AS col) SELECT (SELECT col['b'] FROM UNNEST(col) AS t(col) WHERE col['a'] = 1) FROM _data", + write={ + "bigquery": "WITH _data AS (SELECT [STRUCT(1 AS a, 2 AS b), STRUCT(2 AS a, 3 AS b)] AS col) SELECT (SELECT col.b FROM UNNEST(col) AS col WHERE col.a = 1) FROM _data", + "duckdb": "WITH _data AS (SELECT [{'a': 1, 'b': 2}, {'a': 2, 'b': 3}] AS col) SELECT (SELECT col['b'] FROM UNNEST(col) AS t(col) WHERE col['a'] = 1) FROM _data", + }, + ) + self.validate_all( "SELECT {'bla': column1, 'foo': column2, 'bar': column3} AS data FROM source_table", read={ "bigquery": "SELECT STRUCT(column1 AS bla, column2 AS foo, column3 AS bar) AS data FROM source_table", "duckdb": "SELECT {'bla': column1, 'foo': column2, 'bar': column3} AS data FROM source_table", }, + write={ + "bigquery": "SELECT STRUCT(column1 AS bla, column2 AS foo, column3 AS bar) AS data FROM source_table", + }, ) self.validate_all( "WITH cte(x) AS (SELECT 1 UNION ALL SELECT 2 UNION ALL SELECT 3) SELECT AVG(x) FILTER (WHERE x > 1) FROM cte", @@ -86,8 +145,8 @@ class TestDuckDB(Validator): self.validate_all( "SELECT UNNEST(ARRAY[1, 2, 3]), UNNEST(ARRAY[4, 5]), UNNEST(ARRAY[6]) FROM x", write={ - "bigquery": "SELECT IF(pos = pos_2, col, NULL) AS col, IF(pos = pos_3, col_2, NULL) AS col_2, IF(pos = pos_4, col_3, NULL) AS col_3 FROM x, UNNEST(GENERATE_ARRAY(0, GREATEST(ARRAY_LENGTH([1, 2, 3]), ARRAY_LENGTH([4, 5]), ARRAY_LENGTH([6])) - 1)) AS pos CROSS JOIN UNNEST([1, 2, 3]) AS col WITH OFFSET AS pos_2 CROSS JOIN UNNEST([4, 5]) AS col_2 WITH OFFSET AS pos_3 CROSS JOIN UNNEST([6]) AS col_3 WITH OFFSET AS pos_4 WHERE ((pos = pos_2 OR (pos > (ARRAY_LENGTH([1, 2, 3]) - 1) AND pos_2 = (ARRAY_LENGTH([1, 2, 3]) - 1))) AND (pos = pos_3 OR (pos > (ARRAY_LENGTH([4, 5]) - 1) AND pos_3 = (ARRAY_LENGTH([4, 5]) - 1)))) AND (pos = pos_4 OR (pos > (ARRAY_LENGTH([6]) - 1) AND pos_4 = (ARRAY_LENGTH([6]) - 1)))", - "presto": "SELECT IF(_u.pos = _u_2.pos_2, _u_2.col) AS col, IF(_u.pos = _u_3.pos_3, _u_3.col_2) AS col_2, IF(_u.pos = _u_4.pos_4, _u_4.col_3) AS col_3 FROM x, UNNEST(SEQUENCE(1, GREATEST(CARDINALITY(ARRAY[1, 2, 3]), CARDINALITY(ARRAY[4, 5]), CARDINALITY(ARRAY[6])))) AS _u(pos) CROSS JOIN UNNEST(ARRAY[1, 2, 3]) WITH ORDINALITY AS _u_2(col, pos_2) CROSS JOIN UNNEST(ARRAY[4, 5]) WITH ORDINALITY AS _u_3(col_2, pos_3) CROSS JOIN UNNEST(ARRAY[6]) WITH ORDINALITY AS _u_4(col_3, pos_4) WHERE ((_u.pos = _u_2.pos_2 OR (_u.pos > CARDINALITY(ARRAY[1, 2, 3]) AND _u_2.pos_2 = CARDINALITY(ARRAY[1, 2, 3]))) AND (_u.pos = _u_3.pos_3 OR (_u.pos > CARDINALITY(ARRAY[4, 5]) AND _u_3.pos_3 = CARDINALITY(ARRAY[4, 5])))) AND (_u.pos = _u_4.pos_4 OR (_u.pos > CARDINALITY(ARRAY[6]) AND _u_4.pos_4 = CARDINALITY(ARRAY[6])))", + "bigquery": "SELECT IF(pos = pos_2, col, NULL) AS col, IF(pos = pos_3, col_2, NULL) AS col_2, IF(pos = pos_4, col_3, NULL) AS col_3 FROM x CROSS JOIN UNNEST(GENERATE_ARRAY(0, GREATEST(ARRAY_LENGTH([1, 2, 3]), ARRAY_LENGTH([4, 5]), ARRAY_LENGTH([6])) - 1)) AS pos CROSS JOIN UNNEST([1, 2, 3]) AS col WITH OFFSET AS pos_2 CROSS JOIN UNNEST([4, 5]) AS col_2 WITH OFFSET AS pos_3 CROSS JOIN UNNEST([6]) AS col_3 WITH OFFSET AS pos_4 WHERE ((pos = pos_2 OR (pos > (ARRAY_LENGTH([1, 2, 3]) - 1) AND pos_2 = (ARRAY_LENGTH([1, 2, 3]) - 1))) AND (pos = pos_3 OR (pos > (ARRAY_LENGTH([4, 5]) - 1) AND pos_3 = (ARRAY_LENGTH([4, 5]) - 1)))) AND (pos = pos_4 OR (pos > (ARRAY_LENGTH([6]) - 1) AND pos_4 = (ARRAY_LENGTH([6]) - 1)))", + "presto": "SELECT IF(_u.pos = _u_2.pos_2, _u_2.col) AS col, IF(_u.pos = _u_3.pos_3, _u_3.col_2) AS col_2, IF(_u.pos = _u_4.pos_4, _u_4.col_3) AS col_3 FROM x CROSS JOIN UNNEST(SEQUENCE(1, GREATEST(CARDINALITY(ARRAY[1, 2, 3]), CARDINALITY(ARRAY[4, 5]), CARDINALITY(ARRAY[6])))) AS _u(pos) CROSS JOIN UNNEST(ARRAY[1, 2, 3]) WITH ORDINALITY AS _u_2(col, pos_2) CROSS JOIN UNNEST(ARRAY[4, 5]) WITH ORDINALITY AS _u_3(col_2, pos_3) CROSS JOIN UNNEST(ARRAY[6]) WITH ORDINALITY AS _u_4(col_3, pos_4) WHERE ((_u.pos = _u_2.pos_2 OR (_u.pos > CARDINALITY(ARRAY[1, 2, 3]) AND _u_2.pos_2 = CARDINALITY(ARRAY[1, 2, 3]))) AND (_u.pos = _u_3.pos_3 OR (_u.pos > CARDINALITY(ARRAY[4, 5]) AND _u_3.pos_3 = CARDINALITY(ARRAY[4, 5])))) AND (_u.pos = _u_4.pos_4 OR (_u.pos > CARDINALITY(ARRAY[6]) AND _u_4.pos_4 = CARDINALITY(ARRAY[6])))", }, ) self.validate_all( @@ -165,6 +224,13 @@ class TestDuckDB(Validator): self.validate_all("x ~ y", write={"duckdb": "REGEXP_MATCHES(x, y)"}) self.validate_all("SELECT * FROM 'x.y'", write={"duckdb": 'SELECT * FROM "x.y"'}) self.validate_all( + "SELECT STRFTIME(CAST('2020-01-01' AS TIMESTAMP), CONCAT('%Y', '%m'))", + write={ + "duckdb": "SELECT STRFTIME(CAST('2020-01-01' AS TIMESTAMP), CONCAT('%Y', '%m'))", + "tsql": "SELECT FORMAT(CAST('2020-01-01' AS DATETIME2), CONCAT('yyyy', 'MM'))", + }, + ) + self.validate_all( "SELECT * FROM produce PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2'))", read={ "duckdb": "SELECT * FROM produce PIVOT(SUM(sales) FOR quarter IN ('Q1', 'Q2'))", @@ -188,7 +254,7 @@ class TestDuckDB(Validator): }, ) self.validate_all( - "DATE_DIFF('day', CAST(b AS DATE), CAST(a AS DATE))", + "DATE_DIFF('DAY', CAST(b AS DATE), CAST(a AS DATE))", read={ "duckdb": "DATE_DIFF('day', CAST(b AS DATE), CAST(a AS DATE))", "hive": "DATEDIFF(a, b)", @@ -226,15 +292,15 @@ class TestDuckDB(Validator): self.validate_all( """SELECT DATEDIFF('day', t1."A", t1."B") FROM "table" AS t1""", write={ - "duckdb": """SELECT DATE_DIFF('day', t1."A", t1."B") FROM "table" AS t1""", - "trino": """SELECT DATE_DIFF('day', t1."A", t1."B") FROM "table" AS t1""", + "duckdb": """SELECT DATE_DIFF('DAY', t1."A", t1."B") FROM "table" AS t1""", + "trino": """SELECT DATE_DIFF('DAY', t1."A", t1."B") FROM "table" AS t1""", }, ) self.validate_all( "SELECT DATE_DIFF('day', DATE '2020-01-01', DATE '2020-01-05')", write={ - "duckdb": "SELECT DATE_DIFF('day', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", - "trino": "SELECT DATE_DIFF('day', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", + "duckdb": "SELECT DATE_DIFF('DAY', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", + "trino": "SELECT DATE_DIFF('DAY', CAST('2020-01-01' AS DATE), CAST('2020-01-05' AS DATE))", }, ) self.validate_all( @@ -366,7 +432,7 @@ class TestDuckDB(Validator): }, ) self.validate_all( - "IF(y <> 0, x / y, NULL)", + "IF((y) <> 0, (x) / (y), NULL)", read={ "bigquery": "SAFE_DIVIDE(x, y)", }, @@ -374,6 +440,7 @@ class TestDuckDB(Validator): self.validate_all( "STRUCT_PACK(x := 1, y := '2')", write={ + "bigquery": "STRUCT(1 AS x, '2' AS y)", "duckdb": "{'x': 1, 'y': '2'}", "spark": "STRUCT(1 AS x, '2' AS y)", }, @@ -381,6 +448,7 @@ class TestDuckDB(Validator): self.validate_all( "STRUCT_PACK(key1 := 'value1', key2 := 42)", write={ + "bigquery": "STRUCT('value1' AS key1, 42 AS key2)", "duckdb": "{'key1': 'value1', 'key2': 42}", "spark": "STRUCT('value1' AS key1, 42 AS key2)", }, @@ -478,6 +546,8 @@ class TestDuckDB(Validator): "SELECT CAST('2020-05-06' AS DATE) + INTERVAL 5 DAY", read={"bigquery": "SELECT DATE_ADD(CAST('2020-05-06' AS DATE), INTERVAL 5 DAY)"}, ) + self.validate_identity("SELECT PERCENTILE_CONT(0.25) WITHIN GROUP (ORDER BY y DESC) FROM t") + self.validate_identity("SELECT PERCENTILE_DISC(0.25) WITHIN GROUP (ORDER BY y DESC) FROM t") self.validate_all( "SELECT QUANTILE_CONT(x, q) FROM t", write={ @@ -513,6 +583,14 @@ class TestDuckDB(Validator): self.validate_identity("SELECT ISNAN(x)") + self.validate_all( + "SELECT COUNT_IF(x)", + write={ + "duckdb": "SELECT COUNT_IF(x)", + "bigquery": "SELECT COUNTIF(x)", + }, + ) + def test_array_index(self): with self.assertLogs(helper_logger) as cm: self.validate_all( @@ -569,10 +647,10 @@ class TestDuckDB(Validator): ) self.validate_all( "SELECT INTERVAL '1 quarter'", - write={"duckdb": "SELECT (90 * INTERVAL '1' day)"}, + write={"duckdb": "SELECT (90 * INTERVAL '1' DAY)"}, ) self.validate_all( - "SELECT ((DATE_TRUNC('DAY', CAST(CAST(DATE_TRUNC('DAY', CURRENT_TIMESTAMP) AS DATE) AS TIMESTAMP) + INTERVAL (0 - MOD((DAYOFWEEK(CAST(CAST(DATE_TRUNC('DAY', CURRENT_TIMESTAMP) AS DATE) AS TIMESTAMP)) % 7) - 1 + 7, 7)) day) + (7 * INTERVAL (-5) day))) AS t1", + "SELECT ((DATE_TRUNC('DAY', CAST(CAST(DATE_TRUNC('DAY', CURRENT_TIMESTAMP) AS DATE) AS TIMESTAMP) + INTERVAL (0 - MOD((DAYOFWEEK(CAST(CAST(DATE_TRUNC('DAY', CURRENT_TIMESTAMP) AS DATE) AS TIMESTAMP)) % 7) - 1 + 7, 7)) DAY) + (7 * INTERVAL (-5) DAY))) AS t1", read={ "presto": "SELECT ((DATE_ADD('week', -5, DATE_TRUNC('DAY', DATE_ADD('day', (0 - MOD((DAY_OF_WEEK(CAST(CAST(DATE_TRUNC('DAY', NOW()) AS DATE) AS TIMESTAMP)) % 7) - 1 + 7, 7)), CAST(CAST(DATE_TRUNC('DAY', NOW()) AS DATE) AS TIMESTAMP)))))) AS t1", }, @@ -594,7 +672,7 @@ class TestDuckDB(Validator): write={ "bigquery": "TIMESTAMP_MILLIS(x)", "duckdb": "EPOCH_MS(x)", - "presto": "FROM_UNIXTIME(CAST(x AS DOUBLE) / 1000)", + "presto": "FROM_UNIXTIME(CAST(x AS DOUBLE) / POW(10, 3))", "spark": "TIMESTAMP_MILLIS(x)", }, ) @@ -659,36 +737,44 @@ class TestDuckDB(Validator): ) def test_sample(self): - self.validate_all( + self.validate_identity( "SELECT * FROM tbl USING SAMPLE 5", - write={"duckdb": "SELECT * FROM tbl USING SAMPLE (5)"}, + "SELECT * FROM tbl USING SAMPLE (5 ROWS)", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl USING SAMPLE 10%", - write={"duckdb": "SELECT * FROM tbl USING SAMPLE (10 PERCENT)"}, + "SELECT * FROM tbl USING SAMPLE (10 PERCENT)", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl USING SAMPLE 10 PERCENT (bernoulli)", - write={"duckdb": "SELECT * FROM tbl USING SAMPLE BERNOULLI (10 PERCENT)"}, + "SELECT * FROM tbl USING SAMPLE BERNOULLI (10 PERCENT)", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl USING SAMPLE reservoir(50 ROWS) REPEATABLE (100)", - write={"duckdb": "SELECT * FROM tbl USING SAMPLE RESERVOIR (50 ROWS) REPEATABLE (100)"}, + "SELECT * FROM tbl USING SAMPLE RESERVOIR (50 ROWS) REPEATABLE (100)", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl USING SAMPLE 10% (system, 377)", - write={"duckdb": "SELECT * FROM tbl USING SAMPLE SYSTEM (10 PERCENT) REPEATABLE (377)"}, + "SELECT * FROM tbl USING SAMPLE SYSTEM (10 PERCENT) REPEATABLE (377)", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl TABLESAMPLE RESERVOIR(20%), tbl2 WHERE tbl.i=tbl2.i", - write={ - "duckdb": "SELECT * FROM tbl TABLESAMPLE RESERVOIR (20 PERCENT), tbl2 WHERE tbl.i = tbl2.i" - }, + "SELECT * FROM tbl TABLESAMPLE RESERVOIR (20 PERCENT), tbl2 WHERE tbl.i = tbl2.i", ) - self.validate_all( + self.validate_identity( "SELECT * FROM tbl, tbl2 WHERE tbl.i=tbl2.i USING SAMPLE RESERVOIR(20%)", + "SELECT * FROM tbl, tbl2 WHERE tbl.i = tbl2.i USING SAMPLE RESERVOIR (20 PERCENT)", + ) + + self.validate_all( + "SELECT * FROM example TABLESAMPLE (3 ROWS) REPEATABLE (82)", + read={ + "duckdb": "SELECT * FROM example TABLESAMPLE (3) REPEATABLE (82)", + "snowflake": "SELECT * FROM example SAMPLE (3 ROWS) SEED (82)", + }, write={ - "duckdb": "SELECT * FROM tbl, tbl2 WHERE tbl.i = tbl2.i USING SAMPLE RESERVOIR (20 PERCENT)" + "duckdb": "SELECT * FROM example TABLESAMPLE (3 ROWS) REPEATABLE (82)", + "snowflake": "SELECT * FROM example TABLESAMPLE (3 ROWS) SEED (82)", }, ) |